Which of the following statements about coal is not true? A) Coal is relatively inexpensive to extract and obtain.
B) Coal is the most polluting of all the fossil fuels.
C) Coal is abundant in the United States.
D) Coal is difficult to ship and store for later use.

In a certain ecosystem owls are predators for mice. the owl population increases and they eat more mice this causes the mouse population to decrease what happens next? a.the birth of mice increases. b. the birth rate of owls increases c. the population of owls decreases d. the population of mice increases

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area

True or false multiple lane changes must be done individually going through the same procedures for each lane change